2) Consider a sequential circuit shown in Fig. 3. The characteristic equation and table of the SR and JK type flip-flops are given in Fig. 4. a) b) c) How many states does the circuit have? Obtain the state transition table. Obtain the state diagram. Ji yi S2 y2 Kiyi R2y2 SR 0001 11 10 YSR Y 0 0 0 0 0 001 0 0 k1010 1 011 undefined Y-S+RY 100 1 1 0 1 0 1 1 0 1 undefined 1 1 01 110 00011 y J KY 0 0 1 000 0 0 1 0 Y-Jy+K'y 0 1 0 1 0 1 1 1 100 1 1 0 1 0 1 1 0 1 1 1 1 0 x lo Clock signal Figure 3 Figure 4